Method for improving moisture barrier protection and electrostat

Details Method for improving moisture barrier protection and electrostat Method for improving moisture barrier protection and electrostat

1989-12-11

1991-06-04

Morgenstern, Norman

Stock material or miscellaneous articles

Hollow or container type article

428 346, 220415, 220454, 220457, 48DIG3, 602001, 427 531, 427 44, 427205, 427238, 4274071, F02F 700, B05D 306, B05D 722, B05D 9004

Patent

active

050212702

ABSTRACT:
The moisture or water vapor barrier protection of a composite pressure vessel suitable for use as a composite cased solid propellant rocket motor is improved by immersing the pressure vessel, during pressure testing thereof, in a curable liquid polymer solution, optionally containing electrically conductive material such as metallic flakes or powder, so that the solution may flow into open voids, cracks or fractures in the pressure vessel and subsequently curing the curable liquid polymer in said voids, cracks or fractures.

REFERENCES:
patent: 2730462 (1956-01-01), Ewing
patent: 3042546 (1962-07-01), Henningsen
patent: 4017323 (1977-04-01), Gannon
patent: 4091124 (1978-05-01), Reighter
patent: 4338353 (1982-07-01), Melchior
patent: 4911795 (1990-03-01), Olliff, Jr.

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